Derrick.



G. H. MILLER.

DERRICK.

APPLICATION FILED MAR. 2. 1916.

Patented Feb. 13, 1917.

2 SHEETS-SHEET I.

H ll H I! lllll IIIIJ A H III INVENTOR 601 i 415/;

ATTORNEYS G. H. MILLER.

DERRICK.

'APPLICATION FILED MAR. 2, 1916.

Patented Feb. 13, 1917.

2 SHEETS-SHEET 2 7 /A/VE/VTOR 601 /7 M4447;

ATTORNEYS man: cu. Pnommwa. WASH!" GUY H. MILLER, OF MONTICELLO, MAINE.

DERRICK.

Specification of Letters Patent.

Patented Feb. 13, 1917.

Application filed March 2, 1916. Serial No. 81,655.

To all whom it may concern:

Be it known that I, GUY H. MILLER, a citizen of the United States, and a resident of Monticello, in the county of Aroostook and State of Maine, have invented a certain new and useful Improvement in Derricks, of which the following is a specification.

One of the principal objects of my present scribed and claimed, and illustrated in the accompanying drawings in which like characters of reference indicate like parts throughout the several figures, of which- Figure 1 represents a view in elevation of a derrick, showing the same as positioned upon a wagon.

Fig. 2 represents a bottom plan view showing the method of attaching the -.der-

rick to the wagon.

Fig. 3 represents a view in elevation looking at the derrick from the rear.

Fig. 4 represents a detail fragmentary elevational view partly in section, of the upperpart of the derrick.

Fig. 5 represents a view in section taken on the plane indicated by the line 5-5 of Fig. 1, looking in the direction indicated by the arrows.

Fig. 6 represents a detail elevational view of the lower portion of the derrick.

Referring more particularly to the drawing, I have indicated a delivery wagon of ordinary construction at 5. The derrick as shown is mounted on the wagon and in cludes a pair of lower spaced parallel sills or beams 6 which extend transversely beneath the body of the wagon and are secured in place by means of metallic straps or clips 7 From the other end of the sills 6 extend the uprights 8. The latter converge toward their upper ends, and have secured thereto at their upper ends a plate 9, Secured to the upper ends of the uprights on the opposite side from that to which plate 9 is fastened, is a plate 10 having a curved arm 11 extending outwardly therefrom, which arm at its outer end carries a vertically arranged barrel or sleeve 12.

A downwardly extending pin 18 carried at the inner end of the arm 14: of the derrick, and at right angles thereto, is jour naled within the sleeve or barrel 12, being provided at its upper end with a collar 15 which rests upon the upper end of the sleeve. The lower end of the pin 15 carries a toothed wheel. 16. The arm 14, as indicated in Fig. 1, is adapted to be swung inwardly over the body of the wagon, or be swung outwardly away from the wagon, as indicated in dotted lines.

A cable 17 is provided which runs over the sheaves or pulleys 18 depending from the arm 14.- adjacent its outer and inner ends respectively, and the outer end of the cable is provided with a hook or other attaching device 19, while its inner end is connected with a shaft 20 journaled in bearings formed on plate 21 carried by the uprights 8 near their lower ends and on the sides opposite the wagon body. Journaled in parallel relation with the shaft 20 and above the same, is a second shaft 22 operable by cranks 23 and being provided with a pinion 2% which meshes with a larger gear wheel 25 carried at the adjacent end of the shaft 20. Thus by turning the crank 23 in one direction, the shaft 20 is rotated whereby to wind or reel the cable 17 thereon. A lever 26 is pivoted at 27 at a point above the pinion 24, and carries a pawl 28 which engages with the teeth of the pinion, whereby to prevent reverse movement of the pinion. The pawl may of course be shifted by hand out of engagement with the pinion when desired.

Secured to one of the uprights 8 adjacent the upper end thereof, is an angle'iron 29 which has one arm extending out alongside the toothed wheel. 16. This arm supports a rod which is journaled in staples or other suitable means 31. At one end of the rod an arm 32 projects at right angles to said rod, and at the opposite end of the rod and extending in an opposite direction, is

provided a finger 33. The finger is arranged opposite an opening 34: in the angle iron 29, and when it is desired to lock the arm M n I d against rotation or shifting movement, the rod is rotated in such direction as to project the finger 33 through the opening 3% and into engagement with the teeth of the wheel 16. The weight of the arm 82, which arm acts as a lever by which the rod may 7 be actuated, normally maintains the finger 33 in engagement with the toothed wheel 16. The rod may, however, be shifted so that the arm 32 will take a vertical position alongside the sleeve 12, in which position the finger 33 will be out of engagement with the toothed wheel and the arm 14 of the derrick will be free to rotate.

It will be noted that the sheave or pulley 18 nearest the inner end of the arm, is arranged at such position with respect to the curved arm 11, that the cable 17 will extend down through the space defined by the convexity of the curved arm, and hence the derrick arm 14 may be turned through approximately an angle of 360 before the cable will engage with any of the parts of the derrick. Thus no obstruction to the free and even running of the cable will be ex perienced.

The derrick may be used in the manner indicated in Fig. 1, in which it is shown as being employed to unload bales of material. The hook 19 being engaged with the bale, the cable is wound upon the shaft 20 until the bale is raised to the height required to clear the sides of the wagon body, and the arm lt is then swung around into the dotted line position, the bale finally being lowered into its place of deposit. It willbe found that such a lift or derrick as I provide is extremely handy and is easily operated, and will provide a convenient and expeditious method of loading and unloading wagons, sleds, and other vehicles.

Although I have described the preferred embodiment of my invention, I may desire to make such changes in the construction, combination. and arrangement of parts thereof, as do not depart from the spirit of the invention and the scope of the appended claims.

- I claim 1. The combination with a vehicle, of a derrick including uprights, means for securing them to a vehicle, a plate secured to the uprights adjacent their upper ends and being provided with a vertically arranged sleeve, a derrick arm having its inner end extending into the sleeve, a toothed wheel carried by the pin beneath the sleeve, means carried by the uprights adapted to cooperate with the toothed wheel in retaining the derrick against rotation at will, sheaves carried by the derrick arm, a cable running through said sheaves and provided with an attaching element at its outer end, and a reeling device carried by the uprights adjacent their lower ends wherebythe cable may be reeled and unreeled at will.

2. A derrick including uprights, a verti cally arranged journal secured thereto, a derrick arm having a pin extending into the journal and provided at its'lower end with a toothed wheel, a plate carried by the up rights and having an arm extending out alongside the toothed wheel and provided with an opening, a rod journaled on the arm and provided at one end with an outwardly extending lever arm and .at its opposite end with a finger adapted, when the lever arm is moved into the proper position, to engage with the toothed wheel for retaining the derrick arm against rotation.

3. A derrick including uprights, an arm secured thereto and being provided with a sleeve, said arm being curved, a derrick arm having a pin journaled in the sleeve, sheaves carried by the derrick arm, and a cable running through the sheaves, the sheave adjacent the inner end of the arm being so positioned with respect to the curved arm that the cable will extend through the space defined by the convexity of said curved arm.

GUY H. MILLER.

Copies 01' this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

